Which statements describe oceanic crust? select the two correct answers.

a. it is made of all types of rocks.
b. its age ranges from very young to more than 4 billion years old.
c. it is between 25 and 70 km thick.
d. it is formed at zones of volcanic activity on the ocean floor.
e. it contains silicate minerals high in iron and magnesium.

Explanation:

It contains silicate minerals high in iron and magnesium. And it's formed at zones of volcanic activity on the ocean floor.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation: